I'd suggest the following:

1) Go to the supermarket and buy a can of your favorite coffee. Drink
said coffee. Take the can, replace the stock muffler and tailpipe.
That
     will get you 5 - 10 hp.

2) Purchase an aftermarket  'cold air intake'. Remove stock intake
which actually pulls in air from outside the car, and replace with
'cold
     air intake' that pulls in nice hot underhood air. Another 7 hp.

3) Find an old metal sign at a scrap yard. Get several lengths of
steel rod and bolt the entire thing to the trunk as a wing. No
additional
    hp but serious downforce in the rear and mad props from your
friends.

4) Slam the car to within about 2 inches of the ground. The ride will
be sh.t, but, again, mad props.

;-)

Dan D
'07 Ody EX
Central NJ USA

Hey

With 50K+ on my '05 Accord, and still running well,
I'd like to take the next step in hopping up the 4 cylinder.
I've had the car a while now, without a single problem.

It's stock to the bone, right now.

Is there any kind of way to 'bolt-on' a dual exhaust on it? Regardless
if this would add performance or not, I doubt it would harm it, if
there is a set up that starts from the rear of the muffler and goes
back. I saw a neighbor's 90? Civic set up with duals, but looks  odd
as there is one cut-out on the rear valance of the car.

The  '05 4cyl. Accords don't have anything like that, and the extra
pipe would 'look as cool' (and subtle) as the V6 exhaust for that
year.

How about in the air cleaner dept?  Would a K&N add any horses, if
they even make a bolt-in for the car?

Can anyone here verify if there's a performance chip that 'piggybacks'
on an existing one? Is that true? If so
does it perform?  How bout injectors?

If I wanted to go yet a step further and go inside the cyl. head, do I
have any valve train options?

It's been a couple years now, and think somebody's come out with some
extras.  It's a stick tranny.

The Chimp